The single hand that characterises the powerfully designed Unomat wristwatch is a hallmark of MeisterSinger. Due to its features, it can cope with a variety of different stresses. The screw-in crown, for example, which is secured against impacts by a flank protector, contributes towards water resistance. The screw-in steel back also guarantees additional robustness. An elaborate internal design ensures that the mechanics are not affected by radiation from electrical appliances or scientific instruments.